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Finding the Fourth Proportional to 150,679.07, 225,478.95 and 130,485.77

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Solution

The fourth proportional to 150,679.07, 225,478.95 and 130,485.77 is: 195,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,679.07 : 225,478.95 = 130,485.77 : x
  2. Step 2: Convert to fraction form
    150,679.07/225,478.95 = 130,485.77/x
  3. Step 3: Cross multiply
    150,679.07x = 225,478.95 × 130,485.77
  4. Step 4: Simplify right side
    150,679.07x = 29,421,794,409.54
  5. Step 5: Solve for x
    x = 29,421,794,409.54/150,679.07
  6. Step 6: Final answer
    x = 195,261.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.